Vol. 17, issue 02-03, article # 11

pdf Dolgova O.V., Vasilyeva N.Yu., Sokolova I.V., Svetlichnaya N.N., Samsonova L.G. Effect of steric para-tert-butyl substitutes on primary photoprocesses in stilbene . // Atmospheric and oceanic optics. 2004. V. 17. No. 02-03. P. 138-143.
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Introduction of steric para-tert-butyl substitutes was shown to stabilize the structure of molecules in the near-planar trans-form. The symmetrical introduction of two tert-butyl substitutes led to changes of fluorescent and lasing properties of molecules. In that case, the probability of trans-> cis-isomerization in III molecule decreased, but cis -> trans-isomerization probability in IV increased conversely, and the molecule fluoresced. The emitting property of stilbene was improved several times at such substitutes.